Employee Benefits (Details) - USD ($)	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Defined Benefit Plan Disclosure [Line Items]
Contribution by employee in plan	$ 18,000
Age of eligible employees for contribute additional amount	50 years
Additional contribution by employee in plan	$ 6,000
Minimum age for qualifying in 401(a) plan	21 years
Employer matching contributions	$ 0	$ 0	$ 0